Spam score relative to the number of backlinks

Let's say hypothetically, there are two names almost identical in every way except for two things - spam score and the number of backlinks.

Domain one has six authentic backlinks that tie nicely to the domain name itself. Its spam score is 0-1%.
Domain two has 300k backlinks of varying quality with a spam score of 20-30%

Which of these two would you invest in and why, assuming it's a desirable name that you want?

I think it is quality over quantity; however, I'm unsure how valuable a domain with a sizable backlink profile can be to a potential buyer and its potential for development concerning SEO.

I would appreciate any insight on this topic; thank you.
-M